doubly-fed造句
例句与造句
- Next , the control technique and arithmetic of doubly - fed vscf wind power generator are also studied in detail , including some of author ' s sights
其次，对变速恒频双馈风能发电的控制技术及其控制算法进行了详尽的研究，其中不乏有作者自己独到的见解。 - As this adjustable speed system of doubly - fed motor normally needs a bi - directional converter . it ' s control technique is complicated and it ' s cost is rather expensive
由于双馈电机调速系统通常采用双向变流器，控制技术复杂，成本较高，限制了它的应用。 - However , the control technology of the doubly - fed vscf wind power generator system is rather complicated , some of difficulties and emphases should be perfected in the future
由于本课题的复杂性及其综合性决定了其难度较高，有些难点、重点还需进一步研究完善。 - The cascade brushless doubly - fed machine was the prototype of the brushless doubly - fed machine , the study of the principle for the former was fundamental to the research of the latter
作为无刷双馈电机的原型,级联式无刷双馈电机对无刷双馈电机的研究具有基础性的指导意义。 - The principle for the cascade brushless doubly - fed machine was introduced , it was pointed at last that the brushless doubly - fed machine and the cascade one were two entirely different machines
从交流电机的基本理论出发,详细阐述了级联式无刷双馈电机的基本原理,指出级联式无刷双馈电机与双馈电机是两种截然不同的电机。 - It's difficult to find doubly-fed in a sentence. 用doubly-fed造句挺难的
- Then , the main circuit used igbt module and its driver circuit , protect circuit and its control circuit are designed in accordance with the characteristic of control system of doubly - fed vscf wind power generator
接着针对变速恒频双馈风能发电控制系统的特点，设计了基于igbt模块的主电路及其驱动、保护和控制电路。 - Doubly - fed motor adjustable speed is an advanced technique , which can be used in the adjustable speed of motor and generator of variational speed and constant frequency , also can realize the adjustment of power factor at the stator
双馈电机调速是一种先进的调速技术，可用于电机的调速和变速恒频发电，并能实现电机定子侧功率因数的调节。 - This platform not only can be used for doubly - fed brush and brushless motor , but also can be done for variational speed and constant frequency wind - generators and hydro - generators . it shows that has a broad application foreground
此实验装置不仅适用于有刷双馈调速，同样也适用于无刷双馈调速，而且可应用于变速恒频风力和水利发电，有广泛的应用前景。 - Exactly measuring parameter in doubly - fed machine adjustable speed system , the system with closed loop control improves the capability of this experiment system . by controlling excitation current of the rotor , the control technique can realize speed adjustment
系统对双馈电机调速时所用到的参数进行了准确的测量，并实现了闭环控制，提高了系统的性能。 - When the system is working , the photoelectric coder checks the speed of doubly - fed vscf wind power generator ; according as the principle formula of vscf , the excitation current frequency of rotor is calculated to satisfy the aim of vscf control
系统工作时，用光电编码器检测出发电机的转速，依据变速恒频的原理公式计算出应馈入转子励磁电流的频率，达到变速恒频控制的目的。 - For this reason , it ' s application will be restricted . this paper designs a circuit topology structure of multi - functional converter , which contains rectifier , chopper and inverter , it can function in soft - starting , chopping and doubly - fed adjusting speed for doubly - fed motor
本文设计了一种适用于双馈电机多种运行状态的多功能变流器的拓扑结构，它将整流器、斩波器与逆变器结合在一起，能完成电机的软启动、斩波、双馈调速。 - The characteristics of wind turbine generators as well as features of the fixed pitch wind turbine generator and the variable pitch wind turbine generator are presented , emphasizing on the variable speed constant frequency ( vscf ) generating system based on doubly - fed generators and on the control system for pitch angles
在简述风力机特性的基础上，介绍了定桨距和变桨距发电机组的特点，重点分析了基于双馈发电机的变速恒频发电系统及桨叶节距角控制系统。 - The paper has done all - around study on the ac excited of variable - speed constant - frequency ( vscf ) wind power generation . the author has done thorough study on the vscf wind power generation technology using wound - rotor doubly - fed induction generator , from simulation to experiment , from theory to practice . he also did at large theory analysis to the vscf wind power generation technology using cascaded brushless doubly - fed generator , and has established stability theoretical foundation for continue study work
本文对交流励磁变速恒频风力发电领域的关键技术进行了较为全面的从仿真到实验、从理论到实践的深入研究，同时对具有广泛潜在应用前景的级联式无刷双馈发电机变速恒频风力发电技术也进行了洋尽地理论分析，为今后进一步的深入研究奠定了一定的理论基础。 - Just based on the two points mentioned above , a control system of doubly - fed variable speed constant frequency ( vscf ) wind power generator based on 8xc196mc is designed in this paper , which can smoothly transform between the different operational modes from sub - synchronous speed to synchronous speed and to super - synchronous speed
正是基于上述两个出发点，本文设计了一台基于8xc196mc单片机的2 . 8kw变速恒频双馈风能发电控制系统。主电路中变流器的设计可使该系统能工作于亚同步速、同步速及超同步速三种运行状态，并具有能量双向流动的特点。 - Secondly , to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing . the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator . thirdly , it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow . the author constructed reliable and integrated experimental system and did a series of experimental study including no - load , cutting - in network and power generation at , below and above the synchronous speed
论文首先分析了风机运行特性及其最佳风能利用原理，通过仿真及实验验证了采用直流电机的输出特性模拟风力机的最大输出功率曲线的可行性，并给出了模拟系统的硬件结构；然后为了实现交流励磁发电机有功、无功功率独立调节机理，分析了交流励磁双馈发电机的数学模型和在追踪最大风能捕获变速恒频风力发电时必需的定子磁链定向矢量控制策略；针对双馈发电机转子能量双向流动的要求，提出并设计了具有能量双向流动能力的双pwm交流励磁用变频器；最后为实现从理论到实践的全面研究，研制出了一套小功率完整的双pwm变频器交流励磁的双馈风力发电机实验系统，进行了空载、并网、同步速及上、下的发电运行等一系列的运行实验；所完成的仿真和实验研究均验证了理论、模型和控制策略的正确性、可行性。